GB830067A - Radar systems for search and precision operations - Google Patents

Radar systems for search and precision operations

Info

Publication number
GB830067A
GB830067A GB6722/56A GB672256A GB830067A GB 830067 A GB830067 A GB 830067A GB 6722/56 A GB6722/56 A GB 6722/56A GB 672256 A GB672256 A GB 672256A GB 830067 A GB830067 A GB 830067A
Authority
GB
United Kingdom
Prior art keywords
signal
aerial
march
deflection coil
search
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB6722/56A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Gilfillan Bros Inc
Original Assignee
Gilfillan Bros Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Gilfillan Bros Inc filed Critical Gilfillan Bros Inc
Publication of GB830067A publication Critical patent/GB830067A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
    • G01S7/04—Display arrangements
    • G01S7/06—Cathode-ray tube displays or other two dimensional or three-dimensional displays
    • G01S7/10—Providing two-dimensional and co-ordinated display of distance and direction
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S1/00—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith
    • G01S1/02—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith using radio waves

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Radar Systems Or Details Thereof (AREA)

Abstract

830,067. Electric servo-systems. GILFILLAN BROS. Inc. March 2, 1956 [March 31, 1955], No. 6722/56. Class 40 (1). [Also in Group XL (c)] In a radar with a plan position indicator, Fig. 2a (not shown, see Group XL (c)), a deflection coil of the cathoderay tube is rotated synchronously with the aerial by means of a servo-system comprising a selsyn transmitter 20A ganged to the aerial and connected to a selsyn control transformer 510, Fig. 4 (not shown), to generate an A.C. error output which is amplified at 531 and applied together with an A.C. reference signal to a synchronous demodulator 533 to give a corresponding D.C. error signal which is integrated in a doubly clamped integrator 535 to ensure a faster response to signal changes, converted back to A.C. in a modulator 537 and applied through a push-pull amplifier 539 to an A.C. servomotor 540, Fig. 3 (not shown), which drives the deflection coil and also a tachometer 550, Fig. 1 (not shown), providing an A.C. rate signal which is also applied to the amplifier 539. Specifications 676,743, 823,141, 823,142 and 830,069 are referred to.
GB6722/56A 1955-03-31 1956-03-02 Radar systems for search and precision operations Expired GB830067A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US830067XA 1955-03-31 1955-03-31

Publications (1)

Publication Number Publication Date
GB830067A true GB830067A (en) 1960-03-09

Family

ID=22175097

Family Applications (1)

Application Number Title Priority Date Filing Date
GB6722/56A Expired GB830067A (en) 1955-03-31 1956-03-02 Radar systems for search and precision operations

Country Status (1)

Country Link
GB (1) GB830067A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6009373A (en) * 1987-06-01 1999-12-28 Furuno Electric Company, Limited Ship track and underwater conditions indicating system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6009373A (en) * 1987-06-01 1999-12-28 Furuno Electric Company, Limited Ship track and underwater conditions indicating system

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